CN108046668A - A kind of processing method of roll-on-type diatom ooze - Google Patents
A kind of processing method of roll-on-type diatom ooze Download PDFInfo
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- CN108046668A CN108046668A CN201711381405.4A CN201711381405A CN108046668A CN 108046668 A CN108046668 A CN 108046668A CN 201711381405 A CN201711381405 A CN 201711381405A CN 108046668 A CN108046668 A CN 108046668A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/001—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing unburned clay
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00025—Aspects relating to the protection of the health, e.g. materials containing special additives to afford skin protection
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
Abstract
The invention discloses a kind of processing methods of roll-on-type diatom ooze, belong to building material technical field.The processing method of the roll-on-type diatom ooze of the present invention, making step are：A, it is pre-dispersed：Deionized water, cellulose and white sand powder is sequentially added in high speed dispersor high speed to disperse；B, stir：Add in titanium dioxide and diatomite dry powder high-speed stirred, the diatomite dry powder cleaned by diatomite ore after by sedimentation separation, obtain diatomite, diatomite dry powder is made after being dried using vacuum freeze-drying method in the diatomite；C, thicken：Rubber powder, which is added in, when temperature is fallen after rise stirs evenly obtained roll-on-type diatom ooze.The present invention with reference to titanium dioxide, is improved the homogeneity of diatomite microcellular structure and shape, and is achieved the effect that improve its noise reduction, absorption, adjusting air humidity and removal formaldehyde using lyophilized diatomite dry powder.
Description
Technical field
The present invention relates to building material technical field more particularly to a kind of processing methods of roll-on-type diatom ooze.
Background technology
Diatomite is that a kind of have that natural nano microcellular structure, large specific surface area, heap density is small, main component is unformed
SiO2Natural siliceous porous nonmetallic mineral, be widely used in the filtering of beer, beverage, drinking water, commercial grease etc. with
And the fields such as sewage disposal, building materials, chemical industry, agricultural, rubber and plastic filler, papermaking filler, it is that many industries are essential
Functional mineral material, has broad application prospects.
China is diatomite reserves big country, is only second to the U.S. in the world, occupies second.But the diatomite reserves in China
In, the overwhelming majority is Low grade resource, and the direct applied high-quality diatomite resource of energy is less.In exploitation level-one diatomite resource
In the process, more than 75% low-grade diatomite resource is discarded, not only the diatomite resource of serious waste preciousness, but also is polluted
Local environment.The comprehensive utilization of low-grade diatomite ore is current and following diatomite utilization industry with deep process technology
It is badly in need of.In low-grade diatomite physical upgrading, scouring is very important link.The effect of scouring mainly makes ore
Mill stripping is generated between grain and particle, achievees the purpose that cleaning, polishing and size degradation.
Since diatomite is usually to be formed by the remains deposition of unicellular water plant diatom, the uniqueness of this diatom
Its anatomy can be formed in the free silica in it can absorb water, deposit after its end of life, formed under certain geological conditions
Diatomite Deposit in existing diatomaceous production, uses after fine powder is crushed to after generally being dried after scouring, just because of
The long-term deposition of Diatomite Deposit, although internal distribution micropore, micro-pore shape and not of uniform size under microscope is applied particularly to
During building materials, noise reduction, absorption, adjusting air humidity and remove formaldehyde effect it is to be improved.
Through retrieval, Chinese patent application, application number：201510127486.X publication date：2015.6.24, one kind is disclosed
Diatom ooze and its production method, diatom ooze are made of the raw material of following weight ratio：Diatomite 32-85, inorganic toner 3~4, food
Product cellulose 1~2, inorganic glue 1~3 and white sand 3~8.The production method of diatom ooze includes the following steps：Diatomite air-flow crushing
Step, diatomite screening step, additive premixing step, anion whipping step.The invention diatom ooze is by diatomite and adds
Agent is added to mix, specifically diatomite using high pressure draught is crushed and freely falling body screens to obtain screening diatomite, Ran Houtong
It crosses anion stirring screening diatomite and diatom ooze is made in additive, the diatom ooze of the invention is not easy to send out in use
It is black, and the wall material quality formed is high, surface is smooth, it is not easy to fade, but diatomite micro-pore shape and size used in the invention are not
One, during applied to interior decoration, after roller coating smoothes out, adsorption capacity is not good enough.
The content of the invention
1. technical problems to be solved by the inivention
For diatomite micro-pore shape used in diatom ooze in the prior art and not of uniform size cause its noise reduction, absorption, adjusting
Air humidity and remove formaldehyde ability it is not good enough the problem of, the present invention provides a kind of processing method of roll-on-type diatom ooze,
It with reference to titanium dioxide, is improved the homogeneity of diatomite microcellular structure and shape, and is reached improvement using lyophilized diatomite dry powder
Its noise reduction, absorption, adjusting air humidity and the effect for removing formaldehyde.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention is：
A kind of processing method of roll-on-type diatom ooze, making step are：
A, it is pre-dispersed：Deionized water, cellulose and white sand powder is sequentially added in high speed dispersor high speed to disperse；
B, stir：It adds in titanium dioxide and diatomite dry powder high-speed stirred, the diatomite dry powder is cleaned by diatomite ore
Afterwards by sedimentation separation, diatomite is obtained, silicon is made after being dried using vacuum freeze-drying method in the diatomite
Diatomaceous earth dry powder；Diatomite dry powder improves significantly through electron microscope observation, homogeneity and specific surface area, and diatomite dry powder combines
The synergistic effect of titanium dioxide improves diatom ooze noise reduction, absorption, adjusting air humidity and the technique effect for removing formaldehyde；
C, thicken：Rubber powder, which is added in, when temperature is fallen after rise stirs evenly obtained roll-on-type diatom ooze.
Said program is improved further, during step A high speed dispersions, temperature must not be higher than 30 DEG C；Step B rotating speeds are not
Less than 3000r/min, until powder stirs evenly；Step C temperature falls back to 40~45 DEG C.
Said program is improved further, diatomite dry powder is prepared by following steps：
Step 1: classification：Diatomite ore in diatomite original ore storehouse is transported to classifying screen through belt conveyor and is classified；
Step 2: it cleans：The diatomite ore of the magnetic ore deposit of removal is transferred to swaging machine scouring；
Step 3: screening：Material is transferred to spin vibration sieve and is screened after scouring；
Step 4: separation：Sedimentation obtains diatomite underflow in subsider；
Step 5: paving disk：Upper material frame after diatomite underflow is laid in material disc；
It is Step 6: quick-frozen：It will be carried out in material frame push-in quick freezing repository quick-frozen；
It is Step 7: lyophilized：It is carried out in material push-in vacuum freeze drying cabin after quick-frozen quick-frozen；
Step 8: it crushes：Material after will be lyophilized crushes to obtain diatomite dry powder.
Said program is improved further, it is further comprising the steps of between step 1 and two：
(1) select：Oversize enters conveyer picker, manually sorts out impurity；
(2) crush：Rear raw ore is selected to be crushed；
(3) magnetic separation：Material and the screenings of step 1 are transferred to magnetic separator and carry out magnetic separation after broken.
Said program is improved further, swaging machine described in step 2 is three slot type swaging machines；Institute in step 3
It is double-deck spin vibration sieve to state spin vibration sieve；The concentration of diatomite underflow described in step 4 is 55%~70%；Step 5 middle berth disk is thick
It spends for 4~5cm；Quick freezing temperature is -38~-42 DEG C in step 6.
Said program is improved further, three slot type swaging machines are respectively that pre- slot → essence of wiping wipes slot → tail wiping in order
Slot is communicated by Pulp pump and pipeline between each slot.
Said program is improved further, the lyophilized technique of vacuum freeze drying cabin described in step 7 is ladder liter
Warm formula temperature curve.
Said program is improved further, ladder-elevating temperature formula temperature curve is：
A, room temperature keeps 60~90min, is evacuated within 100Pa；
B, plate temperature is warming up to 40~45 DEG C of 70~90min of holding, vacuum is kept within 100Pa；
C, plate temperature is warming up to 50~55 DEG C of 120~150min of holding, vacuum is kept within 100Pa；
D, plate temperature is warming up to 70~75 DEG C of 80~100min of holding, vacuum is kept within 80Pa；
E, plate temperature is warming up to 80~85 DEG C of 30~50min of holding, vacuum is kept within 40Pa；
F, plate temperature is cooled to 55 DEG C, vacuum is kept within 40Pa, and the mild temperature of charge of plate is protected in two horizontal parallel lines
Hold vacuum breaker export after 30~40min.
Said program is improved further, the condenser temperature of vacuum freeze drying cabin is -38~-42 DEG C；Step F plates
By cooling water forced cooling during temperature drop temperature.
Said program is improved further, dispersant is added in diatomite underflow described in step 7.
Said program is improved further, dispersant is polyurethane kind, and dosage is diatomite underflow gross weight
0.1%~0.3%.
3. advantageous effect
Using technical solution provided by the invention, compared with prior art, have the advantages that：
(1) processing method of roll-on-type diatom ooze of the invention, diatomite dry powder therein are to utilize vacuum freeze drying
Method is made after diatomite made from scouring is dried, through electron microscope observation, the homogeneity and specific surface of micropore
Product greatly improves, and with reference to the synergistic effect of titanium dioxide, improves its noise reduction, absorption, adjusting air humidity and removal formaldehyde
Technique effect；Moreover, after the diatomite of vesicular texture freezes, be easily broken, can according to the granularity requirements of other auxiliary materials,
It is crushed to equal fineness；
(2) processing method of roll-on-type diatom ooze of the invention, the granularity requirements of 300~400 mesh of diatomite dry powder, application
It is consistent with other pulvis, such as the fineness of mountain flour, titanium dioxide when construction material, achieve the purpose that avoid staticly settling；
(3) processing method of roll-on-type diatom ooze of the invention, diatomite press classification → scouring → screening → separation → speed
Freeze → each progressive progress of step is freezed, to improve diatomaceous purity and extracting rate, and production efficiency is improved, reduce production
Cost；
(4) processing method of roll-on-type diatom ooze of the invention, diatomite ore selects → crushes → magnetic separation the step of, will be miscellaneous
Matter and invalid component are removed in advance, avoid increasing lyophilized cost；
(5) processing method of roll-on-type diatom ooze of the invention with reference to lyophilized technique feature, selects three slot type swaging machines,
The step of wiping in advance → essence wiping → tail is wiped is carried out respectively, while lyophilized cost is reduced, improves finished product extracting rate；Diatomite is dense
Slurry concentration is 55%~70%, paving disc thickness is 4~5cm, is the preferred trial that inventor takes into account lyophilized cost and finished product extracting rate
Scope；Quick freezing temperature is -38~-42 DEG C, then is the optimal quick freezing temperature scope that inventor obtains after testing, is diatom essence
The temperature range of native maximum micro ice crystal generation band, lays a good foundation for the generation of uniform micro；
(6) processing method of roll-on-type diatom ooze of the invention, ladder-elevating temperature formula temperature curve cool down with common ladder
Formula temperature curve is quick-frozen with reference to -38~-42 DEG C on the contrary, be the creative crystallization that inventor combines diatomite feature itself
Temperature ensure that the generation of uniform micro；
(7) processing method of roll-on-type diatom ooze of the invention, ladder-elevating temperature formula temperature curve are described in detail, and are inventors
It is 4~5cm with reference to paving disc thickness, has further refined ladder-elevating temperature formula temperature curve, ensure that entire technique is interior complete when 9 is small
Into reducing further production cost；
(8) processing method of roll-on-type diatom ooze of the invention, condenser temperature are -38~-42 DEG C and quick freezing temperature one
It causes, avoids the secondary distillation of capture moisture；By cooling water forced cooling, it is more than heat required for distillation to avoid distillation latter stage plate heat
It measures and influences the generation of micropore；
(9) processing method of roll-on-type diatom ooze of the invention is added dispersant in diatomite underflow, is further improved
The homogeneity of micropore generation；
(10) processing method of roll-on-type diatom ooze of the invention, dispersant is polyurethane kind, with reference to diatomite characteristic, is gathered
Ammoniacum quasi-molecule can be penetrated into diatomite micropore, to improve suspension effect.
Description of the drawings
Fig. 1 is the diatomite microcellular structure under the electron microscope of the prior art；
Fig. 2 is the diatomite dry powder microcellular structure under electron microscope of the present invention.
Specific embodiment
To further appreciate that present disclosure, with reference to attached drawing, the present invention is described in detail.
Embodiment 1
A kind of processing method of roll-on-type diatom ooze of the present embodiment includes the material of following parts by weight：Deionized water 30,
Diatomite 20, rubber powder 10, titanium dioxide 1, cellulose 1 and white sand powder 2；
Wherein, diatomaceous manufacturing process is as follows：Diatomite ore in diatomite original ore storehouse is fed into belt through batcher
Conveyer is transported to classifying screen, and oversize enters conveyer picker, by manually sorting out the broken film of branch, plastics, iron wire and ratchel etc.
After sundries, diatomite ore feeds crusher, and the screenings of broken material and classifying screen feeds magnetic separator by belt conveyor,
It selects the diatomite ore after magnetic material and enters surge bunker, then measuring belt conveyer is fed by constant feeder, by diatomite ore
Four slot swaging machines are fed, by adding water in feeding mouth, pulp density is adjusted to 35%~40%, are added in the first slot
NaOH, it is 9~10 to make pH value, and the ore pulp after swaging machine enters thinning tank, adds water, and it is 20%~25% to make concentration, then
Double-deck spin vibration sieve is pumped to by slurry, sieve diameter is respectively 80 mesh and 200 mesh, in screening process, add in suitable water with
Screening effect is improved, the material more than 80 mesh is coarse sand, and the material less than 200 mesh flow to surge tank, 200 mesh~80 by pipeline
Purpose intermediate material enters two slot swaging machines, and it is 35%~40% to be added with water to concentration by benefit, is added in the first slot of two slots
NaOH, it is 9~10 to make pH value, and the ore pulp after swaging machine enters individual layer spin vibration sieve, and sieve diameter is 200 mesh, is being sieving through
Cheng Zhong adds in suitable water, and the oversize more than 200 mesh is fine sand, and screenings enters surge tank, is added in surge tank appropriate
Dispersant, in surge tank through cleaning and fully dispersed diatomite ore pulp is further by sedimentation separation, obtain diatom essence
Soil, diatomite dried again, crush after diatomite powder.After testing, diatom content≤80% of diatomite original ore,
SiO2Content≤80%, Fe3O4Content >=3.04%, specific surface area≤19m of raw ore2/ g after scouring, uses centrifugal sedimentation
Diatom content >=81%, SiO of the diatomite obtained after sorting is dry2Content >=81%, Fe3O4Content≤1.6%, yield
>=75%, specific surface area >=20m2/g。
A kind of making step of the processing method of roll-on-type diatom ooze of the present embodiment is：
A, it is pre-dispersed：Deionized water, cellulose and white sand powder is sequentially added in high speed dispersor high speed to disperse 5 minutes,
By circulating cooling water cooling, temperature must not be higher than 30 DEG C；
B, stir：Titanium dioxide and diatomite powder high-speed stirred 10 minutes are added in, rotating speed is not less than 3000r/min, until
Powder stirs evenly, and cooling water is closed down in whipping process；
C, thicken：Cooling water is opened, adornment temperature, which is fallen after rise to addition rubber powder at 40 DEG C, to be stirred evenly, and roll-on-type diatom ooze is made, glues
Angle value is not less than 120.
D, sample：Sample one is identified as after sampling.
Embodiment 2
A kind of processing method of roll-on-type diatom ooze of the present embodiment, diatomite original ore is with embodiment 1, and basic step is the same as real
Apply example 1, it is different and the improvement is that：Include the material of following parts by weight：Deionized water 40, diatomite dry powder 30, rubber powder 20,
Titanium dioxide 2, cellulose 2 and white sand powder 4；Wherein, the manufacturing process of diatomite dry powder is as follows：
Step 1: classification：Diatomite ore in diatomite original ore storehouse is transported to classifying screen through belt conveyor and is classified；
Step 2: it selects：Oversize enters conveyer picker, manually sorts out impurity；
It is Step 3: broken：Rear raw ore is selected to be crushed；
Step 4: magnetic separation：Material and the screenings of step 1 are transferred to magnetic separator and carry out magnetic separation after broken
Step 5: it cleans：The diatomite ore of the magnetic ore deposit of removal is transferred to swaging machine scouring, and swaging machine is three slot type swaging machines,
Respectively prewash tank, fine purifiation slot and tail washing trough, after wherein prewash tank adds water, pulp density is adjusted to 30% or so, stirring motor
Rotating speed is 100 revs/min, and it is 9 to adjust pH value, rotates 10 minutes or so, is mutually cleaned using diatomite ore itself particle
The impurity such as desanding, soil are removed, double-deck spin vibration sieve are pumped to by slurry, sieve diameter is respectively 80 mesh and 200 mesh, in screening process
In, add in suitable water to improve screening effect, more than 80 mesh material for coarse sand as tailings glass, less than 200 purpose things
Material flow to surge tank by pipeline, and the intermediate material of the mesh of 200 mesh~80 enters fine purifiation slot swaging machine, and concentration is added with water to by benefit
For 50%, fine purifiation slot stirring motor rotating speed is 200 revs/min, and adjusts pH value as 8, after rotating 20 minutes or so, then by Pulp pump
It send to tail washing trough, pulp density adds water to be adjusted to 40% or so, and tail washing trough stirring motor rotating speed is 150 revs/min, is rotated 5 minutes
Behind left and right；
Step 6: screening：After tail washing trough is cleaned, material is transferred to individual layer spin vibration sieve, sieve diameter is 200 mesh, is being sieved
In the process, suitable water is added in, the oversize more than 200 mesh is fine sand, and screenings enters surge tank；
Step 7: separation：Add in suitable dispersant in surge tank, in surge tank through cleaning and fully dispersed silicon
Diatomaceous earth ore pulp further by sedimentation separation, obtains diatomite underflow, and diatomite underflow concentration is 55%~70%, this reality
Apply in example is 55%；
Step 8: paving disk：Upper material frame after diatomite underflow is laid in material disc, paving disc thickness are 5cm；
It is Step 9: quick-frozen：Will material frame be pushed into quick freezing repository in carry out it is quick-frozen, quick freezing temperature be -42 DEG C；
It is Step 10: lyophilized：It is carried out in material push-in vacuum freeze drying cabin after quick-frozen quick-frozen；
Step 11: it crushes：Material after will be lyophilized crushes to obtain diatomite dry powder.After testing, after lyophilization
Diatom content >=86%, SiO of the diatomite dry powder arrived2Content >=86%, Fe3O4Content≤1.0%, yield >=89% compare table
Area >=29m2/g.Through electron microscope observation, as shown in the comparison diagram of Fig. 1 and 2, homogeneity and specific surface area carry significantly
Height, and then improve its noise reduction, absorption, adjusting air humidity and the technique effect for removing formaldehyde.
A kind of making step of the processing method of roll-on-type diatom ooze of the present embodiment is：
A, it is pre-dispersed：Deionized water, cellulose and white sand powder is sequentially added in high speed dispersor high speed to disperse 5 minutes,
By circulating cooling water cooling, temperature must not be higher than 30 DEG C；
B, stir：Titanium dioxide and diatomite dry powder high-speed stirred 20 minutes are added in, rotating speed is not less than 3000r/min, until
Powder stirs evenly, and cooling water is closed down in whipping process；
C, thicken：Cooling water is opened, adornment temperature, which is fallen after rise to addition rubber powder at 45 DEG C, to be stirred evenly, and roll-on-type diatom ooze is made, glues
Angle value is not less than 120.
D, sample：Sample two is identified as after sampling.
Embodiment 3
A kind of processing method of roll-on-type diatom ooze of the present embodiment, diatomite original ore is with embodiment 1, and basic step is the same as real
Apply example 2, it is different and the improvement is that：Include the material of following parts by weight：Deionized water 35, diatomite dry powder 25, rubber powder 15,
Titanium dioxide 2, cellulose 2 and white sand powder 3；Wherein, the manufacturing process of diatomite dry powder is as follows：
Step 1: classification：Diatomite ore in diatomite original ore storehouse is transported to classifying screen through belt conveyor and is classified；
Step 2: it selects：Oversize enters conveyer picker, manually sorts out impurity；
It is Step 3: broken：Rear raw ore is selected to be crushed；
Step 4: magnetic separation：Material and the screenings of step 1 are transferred to magnetic separator and carry out magnetic separation after broken
Step 5: it cleans：The diatomite ore of the magnetic ore deposit of removal is transferred to swaging machine scouring, and swaging machine is three slot type swaging machines,
Respectively prewash tank, fine purifiation slot and tail washing trough, after wherein prewash tank adds water, pulp density is adjusted to 30% or so, stirring motor
Rotating speed is 100 revs/min, and it is 9 to adjust pH value, rotates 10 minutes or so, is mutually cleaned using diatomite ore itself particle
The impurity such as desanding, soil are removed, double-deck spin vibration sieve are pumped to by slurry, sieve diameter is respectively 80 mesh and 200 mesh, in screening process
In, add in suitable water to improve screening effect, more than 80 mesh material for coarse sand as tailings glass, less than 200 purpose things
Material flow to surge tank by pipeline, and the intermediate material of the mesh of 200 mesh~80 enters fine purifiation slot swaging machine, and concentration is added with water to by benefit
For 50%, fine purifiation slot stirring motor rotating speed is 200 revs/min, and adjusts pH value as 8, after rotating 20 minutes or so, then by Pulp pump
It send to tail washing trough, pulp density adds water to be adjusted to 40% or so, and tail washing trough stirring motor rotating speed is 150 revs/min, is rotated 5 minutes
Behind left and right；
Step 6: screening：After tail washing trough is cleaned, material is transferred to individual layer spin vibration sieve, sieve diameter is 200 mesh, is being sieved
In the process, suitable water is added in, the oversize more than 200 mesh is fine sand, and screenings enters surge tank；
Step 7: separation：Diatomite underflow concentration is 70%；
Step 8: paving disk：Paving disc thickness is 4cm；
It is Step 9: quick-frozen：Quick freezing temperature is -38 DEG C；
The lyophilized technique of vacuum freeze drying cabin is ladder-elevating temperature formula temperature curve in step 10：
A, room temperature keeps 60min, is evacuated within 100Pa；
B, plate temperature is warming up to 45 DEG C of holding 90min, vacuum is kept within 100Pa；
C, plate temperature is warming up to 55 DEG C of holding 120min, vacuum is kept within 100Pa；
D, plate temperature is warming up to 70 DEG C of holding 100min, vacuum is kept within 80Pa；
E, plate temperature is warming up to 85 DEG C of holding 30min, vacuum is kept within 40Pa；
F, plate temperature is cooled to 55 DEG C, vacuum is kept within 40Pa, and the mild temperature of charge of plate is protected in two horizontal parallel lines
Hold vacuum breaker export after 40min.
Step 11: it crushes：Material after will be lyophilized crushes to obtain diatomite dry powder.
A kind of making step of the processing method of roll-on-type diatom ooze of the present embodiment is：
A, it is pre-dispersed：Deionized water, cellulose and white sand powder is sequentially added in high speed dispersor high speed to disperse 5 minutes,
By circulating cooling water cooling, temperature must not be higher than 30 DEG C；
B, stir：Titanium dioxide and diatomite dry powder high-speed stirred 18 minutes are added in, rotating speed is not less than 3000r/min, until
Powder stirs evenly, and cooling water is closed down in whipping process；
C, thicken：Cooling water is opened, adornment temperature, which is fallen after rise to addition rubber powder at 40 DEG C, to be stirred evenly, and roll-on-type diatom ooze is made, glues
Angle value is not less than 120.
D, sample：Sample three is identified as after sampling.
After testing, diatom content >=86%, SiO of the diatomite dry powder obtained after lyophilization2Content >=86%, Fe3O4
Content≤1.0%, yield >=89%, specific surface area >=33m2/g.There is very strong reduction noise, can effectively absorb
Harmful high frequency segment, and low frequency of decaying is made an uproar function.Its effect be equivalent to condition of equivalent thickness cement mortar and slabstone 3
Times or more, while can shorten for 70% reverb time, harm of the noise to the person has been greatly reduced, one can be created
Quiet sleep environment.The pyroconductivity of diatomite dry powder is very low, and body is preferable heat preserving and insulating material, has extraordinary guarantor
Warm heat-proof quality, heat insulation are 8 times of condition of equivalent thickness cement mortar, moreover, its unique " molecular sieve " structure obtains by force
Change, can be generated after the moisture in touching air " water fall effect ", so as to constantly release the negative oxygen beneficial to human body from
Son.
Embodiment 4
A kind of processing method of roll-on-type diatom ooze of the present embodiment, diatomite original ore is with embodiment 1, and basic step is the same as real
Apply example 2, it is different and the improvement is that：Include the material of following parts by weight：Deionized water 35, diatomite dry powder 25, rubber powder 15,
Titanium dioxide 2, cellulose 1 and white sand powder 4；Wherein, the manufacturing process of diatomite dry powder is as follows：
Step 1: classification：Diatomite ore in diatomite original ore storehouse is transported to classifying screen through belt conveyor and is classified；
Step 2: it selects：Oversize enters conveyer picker, manually sorts out impurity；
It is Step 3: broken：Rear raw ore is selected to be crushed；
Step 4: magnetic separation：Material and the screenings of step 1 are transferred to magnetic separator and carry out magnetic separation after broken
Step 5: it cleans：The diatomite ore of the magnetic ore deposit of removal is transferred to swaging machine scouring, and swaging machine is three slot type swaging machines,
Respectively prewash tank, fine purifiation slot and tail washing trough, after wherein prewash tank adds water, pulp density is adjusted to 30% or so, stirring motor
Rotating speed is 100 revs/min, and it is 9 to adjust pH value, rotates 10 minutes or so, is mutually cleaned using diatomite ore itself particle
The impurity such as desanding, soil are removed, double-deck spin vibration sieve are pumped to by slurry, sieve diameter is respectively 80 mesh and 200 mesh, in screening process
In, add in suitable water to improve screening effect, more than 80 mesh material for coarse sand as tailings glass, less than 200 purpose things
Material flow to surge tank by pipeline, and the intermediate material of the mesh of 200 mesh~80 enters fine purifiation slot swaging machine, and concentration is added with water to by benefit
For 50%, fine purifiation slot stirring motor rotating speed is 200 revs/min, and adjusts pH value as 8, after rotating 20 minutes or so, then by Pulp pump
It send to tail washing trough, pulp density adds water to be adjusted to 40% or so, and tail washing trough stirring motor rotating speed is 150 revs/min, is rotated 5 minutes
Behind left and right；
Step 6: screening：After tail washing trough is cleaned, material is transferred to individual layer spin vibration sieve, sieve diameter is 200 mesh, is being sieved
In the process, suitable water is added in, the oversize more than 200 mesh is fine sand, and screenings enters surge tank；
Step 7: separation：Diatomite underflow concentration is 68%；
Step 8: paving disk：Paving disc thickness is 4.5cm；
It is Step 9: quick-frozen：Quick freezing temperature is -38 DEG C；
The lyophilized technique of vacuum freeze drying cabin is ladder-elevating temperature formula temperature curve in step 10：
A, room temperature keeps 60min, is evacuated within 100Pa；
B, plate temperature is warming up to 45 DEG C of holding 90min, vacuum is kept within 100Pa；
C, plate temperature is warming up to 55 DEG C of holding 120min, vacuum is kept within 100Pa；
D, plate temperature is warming up to 70 DEG C of holding 100min, vacuum is kept within 80Pa；
E, plate temperature is warming up to 85 DEG C of holding 30min, vacuum is kept within 40Pa；
F, plate temperature is cooled to 55 DEG C, vacuum is kept within 40Pa, and the mild temperature of charge of plate is protected in two horizontal parallel lines
Hold vacuum breaker export after 40min.
After testing, diatom content >=86%, SiO of the diatomite dry powder obtained after lyophilization2Content >=86%, Fe3O4
Content≤1.0%, yield >=89%, specific surface area >=35m2/g。
A kind of making step of roll-on-type diatom ooze of the present embodiment is：
A, it is pre-dispersed：Deionized water, cellulose and white sand powder is sequentially added in high speed dispersor high speed to disperse 5 minutes,
By circulating cooling water cooling, temperature must not be higher than 30 DEG C；
B, stir：Titanium dioxide and diatomite dry powder high-speed stirred 18 minutes are added in, rotating speed is not less than 3000r/min, until
Powder stirs evenly, and cooling water is closed down in whipping process；
C, thicken：Cooling water is opened, adornment temperature, which is fallen after rise to addition rubber powder at 40 DEG C, to be stirred evenly, and roll-on-type diatom ooze is made, glues
Angle value is not less than 120.
D, sample：Sample four is identified as after sampling.
Embodiment 5
A kind of processing method of roll-on-type diatom ooze of the present embodiment, diatomite original ore is the same as embodiment 2, diatomite dry powder system
The basic step of work is different and the improvement is that with embodiment 4：
Step 7: separation：Diatomite underflow concentration is 60%；
Step 8: paving disk：Paving disc thickness is 4.5cm；
It is Step 9: quick-frozen：Quick freezing temperature is -40 DEG C；
The lyophilized technique of vacuum freeze drying cabin is ladder-elevating temperature formula temperature curve in step 10：
A, room temperature keeps 90min, is evacuated within 100Pa；
B, plate temperature is warming up to 40 DEG C of holding 70min, vacuum is kept within 100Pa；
C, plate temperature is warming up to 50 DEG C of holding 150min, vacuum is kept within 100Pa；
D, plate temperature is warming up to 75 DEG C of holding 80min, vacuum is kept within 80Pa；
E, plate temperature is warming up to 80 DEG C of holding 50min, vacuum is kept within 40Pa；
F, by plate temperature by cooling water forced cooling to 55 DEG C, vacuum is kept within 40Pa, and the mild temperature of charge of plate is in two
Horizontal parallel line keeps vacuum breaker export after 30min.
Step 11: the material after will be lyophilized crushes to obtain diatomite dry powder, fineness is 300~400 mesh.
After testing, specific surface area >=35m of the diatomite dry powder obtained after lyophilization2/g。
A kind of making step of roll-on-type diatom ooze of the present embodiment samples five with embodiment 4.
Embodiment 6
A kind of processing method of roll-on-type diatom ooze of the present embodiment, diatomite original ore is the same as embodiment 2, diatomite dry powder system
The basic step of work is different and the improvement is that with embodiment 5：It is added in diatomite underflow described in step 7 scattered
Agent, dispersant are polyurethane kind, and dosage is the 0.1%~0.3% of diatomite underflow gross weight, with reference to diatomite characteristic, poly- ammonia
Lipid molecule can be penetrated into diatomite micropore, to improve suspension effect, avoid it is quick-frozen during layering.
A kind of making step of roll-on-type diatom ooze of the present embodiment samples six with embodiment 4.
Embodiment 7
Roll-on-type diatom ooze obtained in above example 1,2,3,4,5,6 is taken, is classified as sample one respectively to sample six, round brush arrives
The same thickness, then turns on climate box hatch door on ceramic wafer, and the density board of one piece of release formaldehyde has been put in the inside in advance, and
Initial concentration of formaldehyde is 1.84mg/m after having measured balance3, then the ceramic wafer for coating diatom ooze is put in, closing chamber
Door, when wait 48 is small silently or even when 96 is small, the concentration of formaldehyde of the inside is looked in what kind of variation can occur：
It can be apparent from by more than contrast table, use the diatomite dry powder of sample two made from lyophilized technique to sample six should
After roll-on-type diatom ooze, formaldehyde removal rate has clear improvement than sample one, moreover, having apparent removal saturation with sample one
(96 it is small when after, residues of formaldehyde rises instead) the problem of spending, sample two to sample six is interior without generating adsorption saturation at least when 96 is small
Situation.
Schematically the present invention and embodiments thereof are described above, this describes no restricted, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So if common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (10)
1. a kind of processing method of roll-on-type diatom ooze, which is characterized in that its making step is：
A, it is pre-dispersed：Deionized water, cellulose and white sand powder is sequentially added in high speed dispersor high speed to disperse；
B, stir：It adds in titanium dioxide and diatomite dry powder high-speed stirred, the diatomite dry powder passes through after being cleaned by diatomite ore
Sedimentation separation is crossed, obtains diatomite, diatomite is made after being dried using vacuum freeze-drying method in the diatomite
Dry powder；
C, thicken：Rubber powder, which is added in, when temperature is fallen after rise stirs evenly obtained roll-on-type diatom ooze.
2. a kind of processing method of roll-on-type diatom ooze according to claim 1, it is characterised in that：Step A high speed dispersions
When, temperature must not be higher than 30 DEG C；Step B rotating speeds are not less than 3000r/min, until powder stirs evenly；Step C temperature falls back to 40~
45℃。
A kind of 3. processing method of roll-on-type diatom ooze according to claim 1, which is characterized in that the diatomite dry powder
It is prepared by following steps：
Step 1: classification：Diatomite ore in diatomite original ore storehouse is transported to classifying screen through belt conveyor and is classified；
Step 2: it cleans：The diatomite ore of the magnetic ore deposit of removal is transferred to swaging machine scouring；
Step 3: screening：Material is transferred to spin vibration sieve and is screened after scouring；
Step 4: separation：Sedimentation obtains diatomite underflow in subsider；
Step 5: paving disk：Upper material frame after diatomite underflow is laid in material disc；
It is Step 6: quick-frozen：It will be carried out in material frame push-in quick freezing repository quick-frozen；
It is Step 7: lyophilized：It is carried out in material push-in vacuum freeze drying cabin after quick-frozen quick-frozen；
Step 8: it crushes：Material after will be lyophilized crushes to obtain diatomite dry powder.
4. a kind of processing method of roll-on-type diatom ooze according to claim 3, it is characterised in that：The step 1 and two
Between it is further comprising the steps of：
(1) select：Oversize enters conveyer picker, manually sorts out impurity；
(2) crush：Rear raw ore is selected to be crushed；
(3) magnetic separation：Material and the screenings of step 1 are transferred to magnetic separator and carry out magnetic separation after broken.
5. a kind of processing method of roll-on-type diatom ooze according to claim 4, it is characterised in that：It is wiped described in step 2
Washing machine is three slot type swaging machines；Spin vibration sieve described in step 3 is double-deck spin vibration sieve；Diatomite underflow described in step 4 is dense
It spends for 55%~70%；Step 5 middle berth disc thickness is 4~5cm；Quick freezing temperature is -38~-42 DEG C in step 6.
6. the processing method of roll-on-type diatom ooze according to claim 5, it is characterised in that：The three slot types swaging machine according to
Order is respectively that pre- slot → essence wiping slot → tail of wiping wipes slot, is communicated between each slot by Pulp pump and pipeline.
7. according to a kind of processing method of any roll-on-type diatom ooze of claim 3 to 6, it is characterised in that：Step 7
Described in vacuum freeze drying cabin lyophilized technique be ladder-elevating temperature formula temperature curve.
8. a kind of processing method of roll-on-type diatom ooze according to claim 7, it is characterised in that：The ladder-elevating temperature formula
Temperature curve is：
A, room temperature keeps 60~90min, is evacuated within 100Pa；
B, plate temperature is warming up to 40~45 DEG C of 70~90min of holding, vacuum is kept within 100Pa；
C, plate temperature is warming up to 50~55 DEG C of 120~150min of holding, vacuum is kept within 100Pa；
D, plate temperature is warming up to 70~75 DEG C of 80~100min of holding, vacuum is kept within 80Pa；
E, plate temperature is warming up to 80~85 DEG C of 30~50min of holding, vacuum is kept within 40Pa；
F, plate temperature is cooled to 55 DEG C, vacuum is kept within 40Pa, and the mild temperature of charge of plate keeps 30 in two horizontal parallel lines
Vacuum breaker export after~40min.
9. a kind of processing method of roll-on-type diatom ooze according to claim 8, it is characterised in that：The vacuum refrigeration is done
The condenser temperature in dry storehouse is -38~-42 DEG C；By cooling water forced cooling during step F plate temperature drop temperature.
10. a kind of processing method of roll-on-type diatom ooze according to claim 8, it is characterised in that：Described in step 7
Add dispersant in diatomite underflow, the dispersant is polyurethane kind, dosage for diatomite underflow gross weight 0.1%~
0.3%.
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| US20080264302A1 (en) * | 2004-10-25 | 2008-10-30 | Nozawa Corporation | Curable Composition Containing as Constituent Material Silica Obtained by Decomposing Chrysotile and Cured Object |
| CN102744145A (en) * | 2012-06-18 | 2012-10-24 | 中国矿业大学(北京) | Scrubbing process for diatomaceous earth ores |
| CN106278031A (en) * | 2016-08-11 | 2017-01-04 | 北京南极海新材料股份有限公司 | A kind of roll-on-type diatom ooze environment protection interior wall powder body material and preparation method thereof |
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Application publication date: 20180518 |